Corybas cheesemanii
Plant: a very small species, 13-25 mm high when in flower, rarely more
Leaf: sessile, 6-13 mm long, ovate-cordate or orbicular-cordate, apiculate, membranous, veins conspicuous when dry
Peduncle: very short or none Bract short, sheathing.
Flower: about 16 mm long, dull-purple
Dorsal sepal: very large, helmet-shaped, curved over the lip, obtuse, maroon or occasionally white
Lateral sepals: minute, subulate, erect, placed between the basal spurs of the lip.
Lateral petals: frequently wanting, when present very minute, deflexed, placed under or behind the basal spurs of the lip
Labellum: very large, tubular, the margins involute and meeting behind the column and enclosing it, the mouth expanded and abruptly recurved; margins entire
Spurs: short, conical
Column: short, stout, erect, with a large fleshy gland at the base, anther terminal, very large
Capsule: 8 mm, long, linear-oblong, elevated on the greatly elongated peduncle, which is sometimes over 15 mm long
Distribution: North Island : Auckland — Kaitaia, B. H. Matthews!; Vicinity of Auckland, T. F. C. South Island: Near Westport, W. Townson!
Ecology: Forming large colonies in wet places - stream banks, cliff face seepages, in the spray zone of waterfalls, deep shaded ravines